_______ the moon moves round the earth is well known to all of us.
A
本题的考点是：That引导的主语从句，注意that引导的主语从句在句中只起到连接作用，没有意义，也不做任何成分。
If you are unable to come to the interview,for______reasonyou should inform us ahead of time.
The rediscovery of this species of birds is one of the most___(ordinary)scientific findings in recent years.